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Five-Primary-Color LCDs

2009; Institute of Electrical and Electronics Engineers; Volume: 6; Issue: 1 Linguagem: Inglês

10.1109/jdt.2009.2032247

1558-9323

Hui‐Chuan Cheng, Ilan Ben‐David, Shin‐Tson Wu,

Advanced optical system design

We demonstrate a wide color gamut and high brightness LCD TV using a conventional cold cathode fluorescent lamp (CCFL) backlight with five-primary (red, green, blue, yellow, and cyan) colors. Without changing the CCFL backlight and pixel size, the color gamut is widened from ~72% to ~90% and meanwhile the white brightness is increased by more than 20%, as compared to the three-primary. We also validate our simulation results using a 32" five-primary multi-domain vertical alignment LCD TV prototype. The agreement is reasonably good.